baber/WOPTO huggingface dataset:
Patent GB-985885-A (GB)
Title: Improvements in the production of copolymers of maleic anhydride
Inventor: BRANDT SIEGFRIED
IPC: C08F6/12
Filed: 1963-04-30
Abstract: Solvent is removed from copolymers of maleic anhydride and ethylenically unsaturated monomers by steam distillation, the steam being prevented from condensing on the copolymer by being maintained at a temperature above its dew point and below the decomposition temperature of the copolymer whilst the steam is in the vessel containing the copolymer.  The monomers exemplified are styrene, indene, ethylene, vinyl methyl ether and methyl methacrylate, and those listed include methyl styrene, methyl indene, cumarone, methyl cumarone, acenaphthene, propylene, butylene decene, vinyl chloride, vinylidene chloride, acrylic acid esters and phthalic acid esters of allyl alcohol.  The copolymer may be preheated by means of hot gas, before steam distillation, which may also be used to remove the steam remaining after distillation.  The steam distillation may be carried out in a fluidized bed.  The solvent removed may be xylene, toluene, and/or butanol.
Patent GB-190733-A (GB)
Title: Improvements in and relating to apparatus for the manufacture of lead oxide
IPC: C01G21/06
Filed: 1921-06-22
Abstract: 190,733. Barton, G. V., and Lead Products Syndicate, Ltd. June 22, 1921. Lead oxide. - Apparatus for the production of lead monoxide, by the method in which a bath of molten lead is agitated and oxidized with a blast of air or steam and the oxide fumes are condensed in suitable chambers, comprises an oxide pot A which may be of any suitable construction, and which is heated by the furnace, the gases from which, together with those from the melting- pot furnace (not shown) pass into the main flue F. A straight, but inclined up-cast shaft B connects the oxide pot with the upper part of the depositing chamber C. The depositing chamber, in transverse section, Fig. 2, is of hopper shape, the sides sloping down, as'shown, to a conveyer M, the trough of which, m<1>, forms the top of the main flue F. The depositing chamber is enclosed in a rectangular structure K, in the walls of which are provided inspection doors k<8> to give access to the spaces between the walls k<1> and the sides of the depositing chamber. These spaces may be heated, if desired, by flue gases, or otherwise. As the oxide fume from the pot A passes through the depositing chamber, the bulk of the oxide is condensed, and falls into the conveyer M, in which it is heated and dried by the flues gases, and along which it is conveyed to the discharge shoot m<2>. The effiuent gases passing through the outlet c<2> still contain a small quantity of oxide, which is separated by means of the separator-conveyers R<1>, R<2>, R<3>, R<4>. The direction of the effluent gases through this series of separators is shown by the dotted arrows; the full-line arrows show the direction in which the conveying action of the blades is arranged. The oxide so separated eventually falls through the gas outlet c<2> into the main depositing chamber. The gases leaving the last separator of the series pass into the vessel S, the lower end of which is under water. Specifications 13458/08, 13600/10, 190,955 and 190,956 are referred to. Reference has been directed by the Comptroller to Specification 11526/09.
Patent GB-169144-A (GB)
Title: Improvements in and relating to silver alloys
IPC: C22C5/06
Filed: 1921-06-22
Abstract: 169,144. Isabellen-H³tte Ges. Sept. 13, 1920, [Convention date]. Alloys.-Silver is alloyed with manganese and aluminium, or with manganese-copper and aluminium; or part or all of the aluminium may be replaced by silicon The alloys contain at least 50 per cent of silver, and preferably over 3 per cent of aluminium. Small quantities of other metals such as zinc, tin, lead, cadmium, and nickel may be added, and such additions may be instead of or in addition to copper. An example contains 80 per cent of silver, 7-9 per cent of aluminium, and 11-13 per cent of manganese-copper consisting of about 70 per cent of copper and 30 per cent of manganese.
Patent GB-1096322-A (GB)
Title: Improvements in or relating to hydraulic servo booster devices
IPC: F15B9/10
Filed: 1965-04-22
Abstract: 1,096,322. Fluid-pressure servomotor systems. LINDE A.G. April 22, 1965 [April 22, 1964], No. 17133/65. Heading G3P. A servodevice for adjusting the output of a hydraulic pump or motor comprises a spool valve 63 movable in the bore of a differential piston 61, 62 whose smaller end face is supplied with fluid from an auxiliary pump connected to inlet 64. The valve 63 controls the connection of the larger side of the piston to the smaller side and exhaust, thus movement of the valve causes a corresponding movement of the piston which through a rack 65 and pinion 66 adjusts the pump or rotor. The piston has a rod 69 with a shoulder 79 and nut 80 which can be engaged by abutments 83, 84 of a spring 122. Chambers 82, 86 are fed with fluid from the auxiliary pump so that under normal conditions, the spring is compressed and does not load the piston. In the event that the auxiliary pump fails, the spring then acts to return the piston to the position shown which is a zero setting of the pump or motor, a negative relief valve being provided to allow unrestricted movement. The spring assembly may be on the opposite side of the pinion 66 from the piston or may not be compressed by the fluid.
Patent GB-169506-A (GB)
Title: Improvements in power plants for operating land cultivating implements and for similar purposes
IPC: A01B3/68
Filed: 1920-06-24
Abstract: 169,506. Bergey, A. E. June 24, 1920. Power Cultivation of land.-Apparatus for propelling agricultural implements &c. backwards and forwards comprises stationary poweractuated winding-apparatus 2, a movable frame 1 carrying the implements, and ropes 3, 4, or like flexible appliances extending directly between the winding-apparatus and movable frame, and connected only to them, for moving the frame @ both ways, the direction of movement being controlled from the frame 1 through the flexible appliances. The frame. 1 is provided with a driving-wheel 5, a supporting-wheel 43, and a steering-wheel 44 operated by a lever 45 near the operator's seat 46. A drum 6 loosely mounted on a shaft 10 is connected through oppositely arranged ratchet-wheels with spur-wheels 11, 12 gearing with wheels 7, 8 on the axle 9. Drums 33 are keyed to the shaft 10. The winding- apparatus 2 comprises a driven shaft 19 having keyed to it a drum 16 which is connected by differential gearing to two supplemental drums 17. Theshaft 19 is driven from a motor-driven shaft 42 through gearing 39, 22 or 40, 41, 23, the wheels 22, 23 being connected with the shaft 19 by pawl or friction clutches controlled by cams on the drums 17, which may be turned slightly on the shaft 19 by turning the shaft 10 by hand by means of a handle 35 adapted to be pushed into engagement with a clutch member 34. Two ropes 3 are wound on the drums 17, 33. and a rope 4 on the drums 16, 6, the ropes 3 being wound oppositely on the drums 33. The frame 1 is pulled towards the winding-apparatus 2 by the winding of the ropes 3 on the drums 17, the drum 6 being simultaneously driven from the axle 9 by the gearing 7, 11, so as to wind up the rope 4. The frame 1 is propelled away from the winding-apparatus 2 by winding the rope 4 on the drum 16 and thus rotating the drum 6 which drives the axle 9 through the gearing 12, 8. 'The unwinding of the ropes 3 from the drums 17 tends to assist the rope 4 through the differential connecting the drums 17 to the drum 6. In order to keep the ropes taut, the gearings 7, 11 and 8, 12 have different ratios arranged so that the wheel 5 always tends to rotate faster than is allowed by the ropes. The motor 18 on the winding- apparatus 2 may be used for propelling it.
Patent GB-453458-A (GB)
Title: Improvements in the process of producing hydrogen peroxide
IPC: C01B15/029
Filed: 1935-06-14
Abstract: 453,458. Treating gases with electric discharges. ELEKTROCHEMISCHE WERKE MUNCHEN AKT-GES., H÷llriegelskreuth, near Munich, Germany. June 14, 1935, No. 17214. Convention date, June 16, 1934. [Class 39 (i)] In the production of hydrogen-peroxide from a mixture of hydrogen and oxygen by subjecting the mixture to an electrical discharge, water vapour is added to the reacting gases in amount to produce a saturation temperature of over 40‹ C., and the temperature of the reaction is maintained above the saturation temperature, preferably above 50‹ C. Apparatus for carrying the invention into effect is shown diagrammatically in the Figure. A fan 16 draws into the apparatus through inlets 13, 14 the reacting gases which are mixed at 17 with water vapour in required amount and pass to the reaction chamber 10. The gases heated by the reaction pass through a heat-exchanger 11 to a cooling tower 12 with Raschig rings or other devices and a cooling coil 20 which is dimensioned and controlled to condense the peroxide formed. The residue passes back into the system and over the heat-exchanger 11 and takes up sufficient of the reacting gases and vapour to make good the amount withdrawn in the tower.
Patent GB-269372-A (GB)
Title: Improvements in display stands
IPC: A47F5/06
Filed: 1926-07-09
Abstract: 269,372. Hamburger, S. July 9, 19M. Pedestal stands; brackets, securing. - A pedestal secured directly to a base or slidably arranged in a. tube 3 carried by a base and held by a pivoted catch 10, is formed with a number of cylindrical portions 4 merging into tapering portions 6, so providing shoulders 7. Brackets 20 for supporting shelves &c. are each secured to the pedestal by means of a projection 22 thereon engaging one of a series of holes 9 in the standard, a curved flange 23, attached to the bracket, embracing a tapered portion 6 and engaging under a shoulder 7.
Patent GB-236053-A (GB)
Title: Improvements relating to pipe joints or connections for tanks, cylinders and the like
IPC: F16L41/14
Filed: 1924-07-21
Abstract: 236,053. Coleman, A. B. July 21, 1924. Plates, securing tubes to.- A pipe joint for use in connecting to tanks, cylinders, &c., e.g. as described in Specification 101,689, comprises a short tube 8 with diametrically opposite flanges 8<a> on its inner end and a recess 8d in one side to allow the end of the tube to be inserted in the aperture in the tank &c. A tight joint is secured by packing 9, coned ring 10, and nut 11.
Patent GB-821286-A (GB)
Title: Improvements in or relating to reheat combustion equipment of jet-propulsion engines
Inventor: WARD PETER ARTHUR
IPC: F23R3/20
Filed: 1956-06-05
Abstract: 821,286. Generating combustion products under pressure. ROLLS-ROYCE Ltd. June 3, 1957 [June 5, 1956], No. 17403/56. Class 51 (1). In a gas-turbine jet-propulsion engine having an exhaust assembly comprising outer and inner walls 15, 16, defining an annular exhaust gas passage, one or more annular walls 18 is or are provided in the exhaust passage each extending downstream from adjacent the turbine outlet so as to divide the exhaust passage into a number of coaxial annular exhaust gas paths 19a, 19b of substantially similar diffusing characteristics, reheat fuel injection means being disposed in the annular exhaust gas passage adjacent the downstream ends of the paths. The intermediate annular wall 18 does not extend axially downstream as far as the inner wall 16 and the reheat fuel injectors are disposed axially between the downstream ends of these two walls. The reheat fuel injectors comprise perforated annular tubes 20a, 20b, 20c, the tubes 20a being disposed in the path of the gases issuing through the annular path 19a, the tubes 20b in the path of the gases issuing from the annular path 19b, and the tubes 20c being disposed radially between the tubes 20a, 20b. Each set of tubes is associated with an annular trough-section flame stabilizer baffle 21a, 21b, 21c, the tubes and baffles being supported from the outer and inner walls 15, 16 by means of struts 22. A baffle 24 is disposed at the downstream end of the inner wall 16 and an igniter or a pilot fuel injector and igniter are disposed within the baffle to effect ignition. The wall 18 is formed in two parts which are notched at their adjoining edges so as to accommodate the supporting struts 17.
Patent GB-1158143-A (GB)
Title: Positive/Negative Switching Circuit
Inventor: ATTEW JAMES EDWARD
IPC: H03F3/72
Filed: 1965-04-26
Abstract: 1,158,143. Transistor circuits. AUTOMATIC INFORMATION DATA SERVICE Ltd. 22 July, 1966 [26 April, 1965], No. 17425/65. Heading H3T. A phase-splitting transistor VT having equal emitter and collector resistors R 1 , R 2  is provided with oppositely directed diodes D 1 , D 2  biased from a change over switch SW such that it provides positive or negative-going video signals at 14 depending on the setting of switch SW.
Patent GB-1036295-A (GB)
Title: Improvements in and relating to data storage
IPC: G11C13/04
Filed: 1965-04-26
Abstract: 1,036,295. Electric digital data-storage. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 26, 1965 [April 27, 1964], No. 17461/65. Heading G4C. Data stored as deformations in the surface of a conductive layer of a record member comprising a thermoplastic layer sandwiched between the conductive layer and an insulating layer, is read by scanning the surface of the conductive layer with an electron beam and detecting electrons scattered from said surface, a leakage path being provided to prevent charge accumulation on the surface. The electron beam is moved across the surface in a raster in synchronism with the movement of the electron beam of a CRT display in a larger raster. Electrical signals from the detector of the scattered electrons control the beam intensity in the display CRT, and may be fed to a computer. Data is stored by depositing a charge pattern on the insulating layer using an electron beam (which may be produced by the same gun and deflectors as the reading beam if the record member is rotated between writing and reading), and passing a heating current through the conductive layer.
Patent GB-151759-A (GB)
Title: Electric display sign
IPC: G09F13/00
Filed: 1919-07-12
Abstract: 151,759. Tregoning, C. July 12, 1919. Rotary apparatus.-A display device comprises electric lamps 13 mounted on the ends of spokes 12 which form two wheels 10, 11 capable of being rotated in the same direction in a vertical plane or of having the axis of the wheels rotated in an horizontal plane, or of having both these motions combined. This is effected by mounting the bearing-bracket 33 for the wheels 10, 11 on a rotatable shaft 9, the wheel axle 18 being rotated by a gear-wheel 34 which meshes with a wheel 35 on a hollow shaft 8 surrounding the shaft 9. The shafts 8, 9 have separate friction wheels 43, 44 which are driven separately or together, by a spring-pressed jockey-wheel 46, which contacts also with a motor-driven wheel 47. The wheel 46 is automatically raised and brought down by a pitman 62 operated by the motor 30, and adjustable brakes 68, cam-actuated by the motor, bring the shafts 8, 9 to rest quickly and unevenly. Contact-rings 19, 20 on the axle 18, and others on the shaft 9, serve for the conduction of electricity to the lamps 13.
Patent GB-400142-A (GB)
Title: Knitting machine
IPC: D04B11/00
Filed: 1932-12-07
Abstract: 400,142. Knitting-machines. WILDMAN MFG. CO., Norristown, Pennsylvania, U.S.A.-(Assignees of Howie, K. and Krieble, C. C. ; Norristown, Pennsylvania, U.S.A.) Dec. 7, 1932, No. 17483/33. Convention date, Feb. 4, 1932. Divided application. [Class 74 (ii).] The screwed shaft 44b for adjusting the narrowing points 44 lengthwise of the needle bed of a full-fashioned machine is mounted in the pivoted narrowing frame 47. A pinion 44c on the shaft 44b engages a pinion 44d on a shaft 44x provided with a spring drum 44<1> for a steel band 44e. The points are moved forwardly when the band 44e is actuated by a lever 43g engaging a cam 431h on the main cam shaft a. The band 44e is arranged to pass near the axis about which the frame 47 pivots. For rotating the screwed shaft backwardly for heeltab narrowing a pawl 46 actuates a ratchet wheel 45 on the shaft 44x. The pawl 46 is urged by a spring 46g into the path of the wheel 45 as the wheel is lifted by the frame 47, but is normally held out of engagement by a pin 46c received in a slot 46b in the pawl. The pin 46c is fixed upon an arm 46d upon a shaft 46e mounted in the links 46f which raise the frame 47. An arm 46k extending rearwardly from the shaft 46e is held in horizontal position by a catch 46n pivoted to a collar 46m on the frame 47. When the heel tab is to be fashioned the block 44a carrying the narrowing points engages the catch 46n to release the arm 46k, and the pawl 46 is thrown into operative position. A handle 44j is provided for manually operating the shaft 44b.
Patent GB-428896-A (GB)
Title: Improvements in or relating to wind or like screens for the cockpits of aircraft, motor boats, or motor-cycle sidecars, or for use in similar situations
IPC: B64C1/14
Filed: 1934-06-13
Abstract: 428,896. Aircraft &c. windscreens. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and TIPS, E. O., 434, Chaussee de Bruxelles, Jumet, Gosselies, Belgium. June 13, 1934, No. 17499. [Class 103 (ii)] [See also Group XXXIII] A wind or like screen for the cockpit of an aircraft, motor-boat, motor-cycle sidecar, &c., comprises a fixed portion arched across the cockpit and a movable portion rearwardly thereof, the movable. portion being arched transversely, sectoral in side elevation, and pivoted on a transverse axis so that when its rear part is raised its front part is projected into the fixed portion. In the construction shown the screen is composed of the movable portion pivoted on a transverse axis m and consisting of panels j, k, fixed portions consisting of panels band c, and an intermediate portion consisting of five panels d, d<1>, e, f, g, h, h<1> four of which form a rigid unit hinged to the fixed remaining panel h, h<1> so that the unit can be raised transversely to give access to the front of the cockpit. Some or all of the panels of the intermediate portion may be hinged to one another instead of forming a rigid unit. The end panels d, d<1> and h, h<1> have sliding sections d, h.
Patent GB-379431-A (GB)
Title: Improved process for the preparation of a fertiliser containing calcium phosphate and nitrogen
IPC: C05B1/06
Filed: 1931-06-17
Abstract: In a process for preparing fertilizers by treating the mineral acid decomposition products of crude calcareous phosphates with ammonia, the decomposition products in a solid or semi-solid state are treated first with dilute ammonia gas and subsequently with concentrated ammonia either in the form of gas or liquid or aqueous solutions. Water or aqueous solutions or suspensions of additional fertilizer material may be added during or after the treatment with dilute ammonia gas; the amount of water added preferably being so regulated that after saturation with ammonia a strewable fertilizer is produced.  Specification 347,974 is referred to.ALSO:In a process for preparing fertilizers by treating the mineral acid decomposition products of crude calcareous phosphates with ammonia, the decomposition products in a solid or semi-solid state are treated first with dilute ammonia gas and subsequently with concentrated ammonia either in the form of gas or liquid or aqueous solutions. Water or aqueous solutions or suspensions of additional fertilizer material may be added during or after the treatment with dilute ammonia gas; the amount of water added preferably being so regulated that after saturation with ammonia a strewable fertilizer is produced.  Specification 347,974 is referred to.
Patent GB-118752-A (GB)
Title: An Improved Hand Guard for Presses and the like.
Inventor: WILLETTS CHARLES HENRY
IPC: F16P3/04
Filed: 1917-11-28
Abstract: 118,752. Willetts, C. H. Nov. 28, 1917. Guards, controlling.-A lazy-tongs hand-guard is moved in front of a press &c. during the downstroke of the plunger and withdrawn during the up-stroke. A slotted lever 9, pivoted at 8 to a fixed bracket 6, is connected with a pin 11 on the plunger of the press and a pin 13 on a vertical slide 14. The lazy-tongs guard 16 is attached to a bar 22 movable on a rod 20, and by pivots 18, 15 respectively to the frame 6 and slide 14. The guard is extended in front of the work as the plunger descends, and withdrawn as the plunger rises. In a cupping-press, the guard is brought into the protective position during the first part of the stroke of the plunger, and the pin 11 on the plunger then opens a spring latch 30 and separates from the lever 9, as shown in dotted lines in Fig. 5.
Patent GB-1215463-A (GB)
Title: Tunnelling machine
Inventor: KORMENDY MILTIADES
IPC: E21D9/12
Filed: 1967-04-18
Abstract: 1,215,463. Tunnelling machines. COAL INDUSTRY (PATENTS) Ltd. 5 April, 1968 [18 April, 1967], No. 17689/67. Heading E1F. [Also in Division F2]  A tunnelling machine comprises a rotary cutter head 54 carrying scoops 104 each having two edges either of which leads depending upon the rotation of the head, each scoop having pivotally mounted in it a deflector plate whereby the plate can operate in either direction of rotation of the head to deflect material to a collector ring 110 for passage to a conveyor 116. The head 54 is rotatably mounted on a bearing 60 which is angularly movable in a support head 40 in two mutually perpendicular planes. The 'bearing 60 has slots 68 engaged by pegs 70 having rectangular bushes 72 to fit the slots, and the bearing is moved by rams 80. The machine has two anchor units 16, 18 supported on feet 19 and having rams 20 for engaging the tunnel wall, the rams 20 being supplied with fluid from hydraulic intensifiers 22, 24 actuated by rams 28 which are used to advance the head 40 and simultaneously pressurize the rams 20. The head 40 has legs 42 and rams 50 for engaging the tunnel wall and the cutter head 54 is driven by a hydraulic motor 90 and carries disc cutter tools and roller cutter tools. Dust extraction ducting 130 is provided. In operation the pressure fed to the motor 90 is also fed to the rams 50, the latter containing return springs. The head 54 may be advanced by the anchor units 16, 18 being moved alternately. When the rams 80 are insufficient to turn the head 54 through a required radius of curvature the rams 28 are used as additional steering units.
Patent GB-165809-A (GB)
Title: Improvements in affixers for stamps, labels and the like
IPC: B65C11/04
Filed: 1918-10-30
Abstract: 165,809. Hall, F. W. Oct. 30, 1918. Damping - machines. -In a machine for affixing stamps, labels, &c. water is ejected on to the surface to be stamped before the feed of the stamp strip starts from orifices p<1> in a water-chamber p by a plate p' carried by an arm pivoted at p<4>, the plate being withdrawn from the orifices by a lever actuated by the hand-plunger of the machine, and returned suddenly to eject the water by a spring p<6>.
Patent GB-436605-A (GB)
Title: Improvements relating to electric water heaters and steam boilers
IPC: F24H1/10
Filed: 1934-06-15
Abstract: 436,605. Heating water by electricity. WILLIAMS, S. A., Vine Lodge, Osterley, Middlesex, and ALLEN, F. J. C., The Gadget, Oatlands Drive, Weybridge, Surrey. June 15, 1934, No. 17793. [Class 39 (iii)] In water heaters with electric heating elements carried by a float, the float 12 is of annular form and the electrodes 14 or resistance elements are placed in the central space of the float. The boiler has a water inlet 6, a steam outlet 8 and a gauge glass 4. The electrodes 14 are connected to a supply cable 16 and are supported on a cylinder 18 which is slotted at 20 so as to be vertically adjustable within the float by bolts 22. The slots also admit water within the cylinder. The electrodes are always above the bottom of the float, which has a diameter a little less than that of the boiler and may be weighted for vertical adjustment.